sci-hub-domains.js

const dns = require('dns')
const tlds = require('tlds')

dns.setServers([
  '80.82.77.83',
  //'8.8.8.8',
])

const getAddresses = tld => new Promise((resolve, reject) => {
  const domain = 'sci-hub.' + tld

  dns.resolve(domain, (err, addresses) => {
    if (err) {
      reject(err)
    } else {
      console.log(domain, addresses)
      resolve(domain)
    }
  })
})

const promises = tlds.map(getAddresses)

Promise.all(promises.map(p => p.catch(() => undefined))).then(results => {
  console.log(results.filter(i => i))
})